From 14b6c32037b19a860132e4e37c09d2d9705ee500 Mon Sep 17 00:00:00 2001
From: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Date: Mon, 7 Oct 2013 15:21:39 +0800
Subject: Btrfs-progs: introduces '-c' option to print the ID of the child
 qgroups

This patch introduces '-c' option to print the ID of the child qgroups.
You may use it like:
	btrfs qgroup show -c <path>

For Example:

                qgroupid(2/0)
                 /       \
                /         \
               /           \
            qgroupid(1/0) qgroupid(1/1)
               \            /
                \          /
		 qgroupid(0/1)

If we use the command:

	btrfs qgroup show -c <path>
The result will output
	0/1 -- -- --
	1/0 -- -- 0/1
	1/1 -- -- 0/1
	2/0 -- -- 1/0,1/1

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 qgroup.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'qgroup.h')

diff --git a/qgroup.h b/qgroup.h
index cefdfe10..33682aeb 100644
--- a/qgroup.h
+++ b/qgroup.h
@@ -27,6 +27,7 @@ enum btrfs_qgroup_column_enum {
 	BTRFS_QGROUP_RFER,
 	BTRFS_QGROUP_EXCL,
 	BTRFS_QGROUP_PARENT,
+	BTRFS_QGROUP_CHILD,
 	BTRFS_QGROUP_ALL,
 };
 
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